Patent Assignment
Reel/Frame 015175/0304
Assignment of Assignor's Interest
Recorded: 2004-04-05
Pages: 2
Assignors
TILLACK, JORG
Executed: 2004-01-22
LAUE, JORG
Executed: 2004-01-27
WITOSSEK, HERBERT
Executed: 2004-02-06
SCHLEMENAT, ANDREAS
Executed: 2004-01-28
Assignee
BAYER AKTIENGESELLSCHAFT
PATENTE UND LIZENZEN, LEVERKUSEN, D51368, GERMANY
Covered Property
(1)
Process for Producing Aliphatic Oligocarbonate Diols
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignor's Interest
Mar 9, 2016
From: BAYER AG
To: BAYER MATERIALSCIENCE AG
Reel/Frame 038044/0799 →
Change of Name
Mar 22, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038399/0358 →
Change of Name
Apr 6, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038365/0392 →